Classify Triangles by Sides

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length.

Front

How do you classify a triangle with one angle greater than 90 degrees?

Back

It is called an obtuse triangle.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

If a triangle has sides measuring 5 inches, 5 inches, and 3 inches, how would you classify it?

Back

Isosceles triangle.

Front

If a triangle has sides measuring 4 inches, 5 inches, and 6 inches, how would you classify it?

Back

Scalene triangle.

Front

What type of triangle has three congruent sides?

Back

Equilateral triangle.

Front

True or False: A triangle with two equal sides is a scalene triangle.

Back

False.

Front

What is the definition of a triangle?

Back

A polygon with three edges and three vertices.